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11Alexandr11 [23.1K]

2 years ago

15

The graph of the function f(x) = (x + 2)(x − 4) is shown.

2 answers:

Alik [6]2 years ago

7 0

Answer:

C on edg.

Step-by-step explanation:

took test

telo118 [61]2 years ago

3 0

Answer:

C

Step-by-step explanation:

all real values of x where 1 < x < 4

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HELP ME ASAP!!!!!!!!

Marina CMI [18]

Answer:

Step-by-step explanation:

1) 30 : 100 = x : 299

x = (30 x 299)/100

x = 89,70 $

2) 299 - 89,70 = 209,30 $

3) 5 : 100 = x : 209,30

x = 10,465 $

209,30 + 10,465 = 219,77 $

5 0

2 years ago

Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

so

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

$t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+40t+5=0$

so

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

4 0

2 years ago

PLEASE HELP ASAP!!!<br><br> How to solve the equations below <br><br> |x−2|=x<br> |x+1|=1−x

kumpel [21]

Answer:

x-2=x x=0

No Solution

x+1=1-x

Cancel 1 on both sides

Subtract −x from both sides

x+x=0

Simplify x +x to 2x

2x=0

x=0

Check Answer

x+1=1-x

0+1=1-0

1=1-0

1=1

6 0

3 years ago

Find the midpoint between (-1, -1) and (-9,6).?

ryzh [129]

Answer:

(-5,-3.5) is the midpoint

Step-by-step explanation:

See photo for the step-by-step explanation

7 0

3 years ago

Read 2 more answers

Solve for N: 3n - 7 = 6n - 2n

jonny [76]

Answer:

-7

Step-by-step explanation:

1. Combine Like Terms

3n-7=4n

2. Subtract 3n on both sides.

-7=n

3. You got your answer:)

3 0

2 years ago